WO2001059362A3 - Illumination device for a reflexively operated flat screen - Google Patents

Illumination device for a reflexively operated flat screen Download PDF

Info

Publication number
WO2001059362A3
WO2001059362A3 PCT/DE2001/000511 DE0100511W WO0159362A3 WO 2001059362 A3 WO2001059362 A3 WO 2001059362A3 DE 0100511 W DE0100511 W DE 0100511W WO 0159362 A3 WO0159362 A3 WO 0159362A3
Authority
WO
WIPO (PCT)
Prior art keywords
screen
reflexively
microprism
light guide
illumination device
Prior art date
Application number
PCT/DE2001/000511
Other languages
German (de)
French (fr)
Other versions
WO2001059362A2 (en
Inventor
Pascal Benoit
Matthias Gebauer
Original Assignee
Bosch Gmbh Robert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of WO2001059362A2 publication Critical patent/WO2001059362A2/en
Publication of WO2001059362A3 publication Critical patent/WO2001059362A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention relates to an illuminating device for a reflexively operated flat screen. The inventive device comprises a flat light guide (22) that extends over the surface of the screen, is arranged on the visual side of the screen (24) and is provided with a microprism structure or microprism-like structure (21). Light can be coupled into said light guide at least in the area of a side edge. According to the invention, the microprism surface structure or microprism-like surface structure is mounted on the side of the light guide (22), whereby said side faces the screen surface when the light guide (22) is arranged at the screen (24).
PCT/DE2001/000511 2000-02-09 2001-02-09 Illumination device for a reflexively operated flat screen WO2001059362A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10005554.0 2000-02-09
DE2000105554 DE10005554C2 (en) 2000-02-09 2000-02-09 Illumination device for a reflexively operated flat screen

Publications (2)

Publication Number Publication Date
WO2001059362A2 WO2001059362A2 (en) 2001-08-16
WO2001059362A3 true WO2001059362A3 (en) 2002-05-30

Family

ID=7630237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000511 WO2001059362A2 (en) 2000-02-09 2001-02-09 Illumination device for a reflexively operated flat screen

Country Status (2)

Country Link
DE (1) DE10005554C2 (en)
WO (1) WO2001059362A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7824091B2 (en) 2005-12-21 2010-11-02 Koninklijke Philips Electronics N.V. Backlight arrangement
US7733439B2 (en) 2007-04-30 2010-06-08 Qualcomm Mems Technologies, Inc. Dual film light guide for illuminating displays
CN102449512A (en) 2009-05-29 2012-05-09 高通Mems科技公司 Illumination devices and methods of fabrication thereof
US8402647B2 (en) * 2010-08-25 2013-03-26 Qualcomm Mems Technologies Inc. Methods of manufacturing illumination systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879991A2 (en) * 1997-05-13 1998-11-25 Matsushita Electric Industrial Co., Ltd. Illuminating system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879991A2 (en) * 1997-05-13 1998-11-25 Matsushita Electric Industrial Co., Ltd. Illuminating system

Also Published As

Publication number Publication date
WO2001059362A2 (en) 2001-08-16
DE10005554A1 (en) 2001-08-30
DE10005554C2 (en) 2001-12-06

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